Samson 42-36 E - Page 57

EB 3018 EN 7-11
Operation
Table 7-4: Flow rate set point ranges for water · Type2423E Regulator, balanced by
a diaphragm
Set point ranges in m³/h with ... DN125 DN150 DN200 DN250
Differential pressure at the restriction
Δprestriction=0.2bar
40 to 90 50 to 140 70 to 220 90 to 260
Differential pressure at the restriction
Δprestriction=0.5bar
50 to 130 60 to 200 80 to 310 100 to 360
Adjustment diagrams for water
0
20
40
60
80
100
120
140
160
180
200
0246810 12 14 16
[ m³/h ]
DN 125
DN 125
DN 150
DN 150
U
V
0
50
100
150
200
250
300
350
400
450
0246810121416
[ m³/h ]
DN 200
DN 250
DN 200
DN 250
U
V
DN125, DN150·A=320cm²
Balanced by a diaphragm
DN200, DN250·A=640cm²
Balanced by a diaphragm
Δp
restriction
=0.5 bar
Δp
restriction
=0.2 bar
V Flow rate
U
Scale divisions of the set
point adjuster (restriction)
Fig.7-5: Adjustment diagrams for Type2423E Regulator, balanced by a diaphragm, DN125 to
250